problem for mathh!!!!!

Question

Solve the system of linear equations by graphing.

y=34x−4

y=−12x+11

Answer 1

HI Armani

Get your graph paper out. Set up your X and Y axis with numbers

plot your first equation

y = 34x - 4

when y is 0 x = -4 plot that point on your graph..when x = 1, y = 30 plot that point.

Plot your second equation

y = -12x + 11

when y = 0, x = 11, plot that point on the graph. when x = 1, y = -1, plot that point.

draw your lines and see where they INTERCEPT. cross each other. that point if your answer

check your answer

y = 34x - 4

y = -12x + 11

solve by multiplying the the second equation by -1, then add the two equations together.

y = 34x + 4

-y = 12x - 11

0 = 46x - 7

7/46 = x

plug x into any equation

y = 12(7/46) - 11 or y = 34(7/46) + 4

y = -9.17

geez these numbers aren't too friendly. are we sure we wrote the problem down correctly?

Answer 2

Graph them and find the intersecting point (x,y). That's the answer.